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CVE Record

CVE-2026-4152: GIMP JP2 File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

GIMP JP2 File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of JP2 files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28863.

HighCVSS 7.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2026-4152 is a high-severity flaw in GIMP's JP2 image handling. A malicious JP2 file or webpage could trigger memory corruption and run code as the user opening it. Exploitation requires user interaction, but impact includes compromise of confidentiality, integrity, and availability.

Executive priority

Prioritize within normal high-severity desktop patching SLAs, faster for creative, marketing, support, or intake teams that process external images. The issue can lead to code execution, but requires user interaction and has no cited active exploitation evidence.

Technical view

The flaw is a heap-based buffer overflow in JP2 parsing caused by insufficient validation of user-supplied length before copying to a heap buffer. The provided CVSS is 7.8 with user interaction required and high confidentiality, integrity, and availability impact. The bundle identifies GIMP 3.0.8 as affected.

Likely exposure

Exposure is most likely on workstations or servers where GIMP 3.0.8 is installed and users open JP2 images from email, web downloads, tickets, shared drives, or customer submissions.

Exploitation context

The provided sources do not show CISA KEV listing or confirmed active exploitation. ZDI describes remote attackers needing the target to open a malicious file or visit a malicious page, which limits automation but still supports targeted phishing or file-sharing scenarios.

Researcher notes

Focus assessment on JP2 parsing paths in GIMP 3.0.8 and downstream package status. The bundle cites CWE-122 and CWE-131, ZDI-CAN-28863, a GIMP commit, and Red Hat advisories, but does not provide exploit details or a fixed upstream version.

Mitigation direction

  • Identify systems with GIMP 3.0.8 installed.
  • Apply vendor updates referenced by GIMP and Red Hat advisories when applicable.
  • Block or quarantine untrusted JP2 files where business workflows allow.
  • Warn users not to open unexpected JP2 files or image links.
  • Check vendor guidance because no fixed GIMP version is named in the bundle.

Validation and detection

  • Inventory installed GIMP versions across managed endpoints.
  • Confirm whether Linux packages map to the referenced Red Hat advisories.
  • Review email, web, and file-sharing controls for JP2 attachment handling.
  • Verify updated packages or builds include the referenced GIMP commit.
  • Monitor endpoint telemetry for unexpected GIMP crashes or suspicious child processes.
Prepared
Confidence
high
Sources
8

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-122: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cwe · low confidence lookup

CWE-131: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-4152 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
5Timeline events
2ADP providers
12Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.0HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9zdi
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9redhat-SADP

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2026-4152Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. ADP timelineredhat-SADP

    Made public.

  3. CVE publishedCVE Program

    The CVE record was published.

  4. ADP timelineredhat-SADP

    Reported to Red Hat.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
redhat-SADPgimp: GIMP: Remote Code Execution via malicious JP2 file parsing
other:Red Hat severity ratingcvssV3_1
  • 2026-04-11T01:01:09.813Z: Reported to Red Hat.
  • 2026-04-11T00:15:54.200Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
GIMPGIMP3.0.8unknown
Weakness

CWE details

CWE-122CWE-131

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-122 · source CWE mapping

Heap-based Buffer Overflow

Heap-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs
CWE-131 · source CWE mapping

Incorrect Calculation of Buffer Size

Incorrect Calculation of Buffer Size represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs